In this week’s news, a PR Firm called Burson-Marsteller admitted they were hired by Facebook to smear Google’s Social Circle via an alleged whisper campaign claiming the service violated user privacy rights. Both the PR Firm and Facebook later apologized for the action. Tisk Tisk, bad Facebook. It is not clear whether any of this […]
Filtered Search Results – Privacy vs. Information Tailored for You Read More »
Retransmissions of frames in WLANs (Wireless Local Area Networks) can become problematic for several reasons, primarily due to the nature of the wireless medium. While retransmissions are a necessary part of ensuring data integrity in unreliable networks, they can cause inefficiencies and degrade network performance. I will get to the details below, but let’s start
Recognizing WLAN Retransmissions is a Critical Skill Read More »
As most of my readers, students, and clients know, I absolutely love Wireshark. I deeply am infatuated with Wireshark’s Profiles, more properly called configuration profiles. So much so that many years ago now, I set up the first Wireshark Profiles Repository. 100’s of thousands of downloads have resulted, and I hope I have helped the
Automatically Switch Configuration Profiles in Wireshark Read More »
I have hesitated to write this article for – well – about 15 years! Why? Because I love Wireshark!! That said, I was asked this question in a recent class. I asked back, why? The individual said they were just curious and perhaps something had come out that was better or next generation. Seemed reasonable,
Alternatives to Wireshark Read More »
CellStream, Inc. – Telecom Consulting and Training! 2.5-Day Instructor Led Hands On Lab ClassAvailable in either Web Based delivery or On-Site DeliveryMinimum 10 students – Maximum 16 students What Students are saying about this class Course Description: Once you have learned the fundamentals of the Wireshark® application and how
CSI-HO-020-L – Advanced Packet Analysis with Wireshark- 2.5 Day Read More »
Introduced in version 3.6 and later is a new Wireshark expert analysis process called TCP Completeness. At first this was quite confusing, but once you get to know what is going on, you come to understand that you can use this new feature to find certain types of TCP issues. We included this is our
Zero-to-Hero – Wireshark TCP Conversation Completeness Read More »
When you first start using Wireshark you will find that the great folks at Wireshark provide us with a “Default” profile. This is where we all started. We will call this our Zero starting point. Here is what it looks like: That default, whilst a great starting point leaves much to be desired as your
Zero-to-Hero on Wireshark Columns Read More »
In this article, I wanted to provide a guide to using ping – ICMP Echo – to troubleshoot your network. Most people use ping on their platform to test if they can reach a given destination. Just open up a terminal (Linux or MAC OSx) or command line (Windows: Start> Run> cmd) and enter the
Troubleshooting The Internet Using Ping (a.k.a. ICMP) Read More »
TFTP is designed to be a stripped-down file transfer protocol without authentication or many of the features that FTP and other protocols offer. Instead, it has two main options: file read requests and file write requests. TFTP is an insecure file transfer protocol with many more secure alternatives. If TFTP traffic exists in a network traffic
TFTP Protocol Profile with Packet Diagram (Wireshark v3.3.0 and later) Read More »
Most Wireshark users agree that the default profile is simply not good enough. The default should be a profile that you can start troubleshooting from. It should be a place where you can check off some important basics as you begin your evidence gathering. My “better default” with Packet Diagram profile is just that. This
A Better Default profile with Packet Diagram (for v3.4.0 and later) Read More »
